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System Administrator

Location:
Phoenix, AZ
Posted:
April 25, 2025

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Antar S. Grier

System Administrator Profile

Goodyear, AZ 85338 • 661-***-****

*****.*****@*****.*** • LinkedIn

Analytical professional with extensive experience in supporting complex, high-security environments across government, defense, and healthcare sectors. Adept at managing classified infrastructure, maintaining server performance, and implementing end-to-end system and network administration solutions. Proven ability to streamline IT operations, enforce cybersecurity protocols, and drive continuous service improvements. Demonstrated expertise in leading cross-functional teams, executing large-scale technology rollouts, and optimizing enterprise platforms to support mission-critical functions. Skilled in ServiceNow, PowerShell, Active Directory, SCCM/MECM, and virtualization technologies. Recognized for enhancing system integrity, reducing service disruptions, and delivering scalable solutions aligned with organizational goals. Committed to operational excellence, data governance, and stakeholder support across dynamic infrastructures. Areas of Expertise

Tier I–III Technical Support

Cybersecurity & Risk Mitigation

Active Directory & Group Policy

System & Network Administration

Virtualization & VMware Management

Windows Server Infrastructure

IT Governance & Compliance

ServiceNow Administration

Infrastructure Lifecycle Management

PowerShell Scripting & Automation

Cloud Identity & Access Management

Incident Response & Root Cause Analysis

Career Experience

Defense Information Systems Agency, Pentagon, Washington, DC 2024 – 2025 Information Technology Specialist (SYSADMIN)

Provided Tier I–III system administration support for classified Pentagon infrastructure by maintaining server environments, managing user accounts, and ensuring seamless system performance. Conducted root cause analysis on service disruptions, implemented corrective actions, and collaborated across teams for unresolved issues. Monitored performance metrics, applied security protocols, and enforced Information Assurance policies. Evaluated help desk incidents to identify trends and revised procedures for operational improvement. Supported network integrity and access control initiatives for high-level stakeholders. Key Achievements/Contributions:

● Streamlined change control operations by supervising Contractor and Government personnel during ECCB and CAB processes.

● Maintained operational continuity and compliance by managing IT systems for VIP Pentagon users, including the Secretary of Defense and CJCS, in line with enterprise security standards.

● Enabled accurate SLA performance tracking by designing and deploying J63 Pentagon’s ServiceNow dashboard. California Department of Corrections & Rehabilitation, Tehachapi, CA 2019 – 2024 Information Technology Supervisor II, Technology Governance & Support Services (2023 – 2024) Oversaw statewide infrastructure projects and daily IT operations across major correctional facilities. Directed lifecycle management of network assets, including upgrades, decommissioning, and preventive maintenance. Administered multimillion-dollar capital and operating budgets while managing procurement and vendor relations. Led technical teams and ensured alignment with enterprise IT strategies. Implemented endpoint support tools and enforced data governance improvements to strengthen security posture. Key Achievements/Contributions:

● Promoted to lead IT operations for two of California’s largest correctional facilities, reflecting leadership and performance excellence.

● Led $34M in 2023 purchases and successfully executed 38 new or amended contracts to meet evolving technology needs.

● Negotiated $136M, 5-year statewide maintenance and support agreement with Cerner, securing long-term operational stability.

● Pioneered the development of a claims management system to achieve Medi-Cal billing certification.

● Cut costs by transitioning Omnicell drug dispensers from lease to purchase.

● Deployed radiology access solutions, EHR-capable medical beds, and data validation tools across facilities. Information Technology Specialist (2019 – 2023)

Delivered end-to-end IT support for California Correctional Institute, managing technical infrastructure within a high-security prison environment. Conducted technology assessments, feasibility studies, and contributed to policy development. Oversaw hardware lifecycle from installation through decommissioning, including routine maintenance and emergency repairs. Provided user training on IT procedures, maintained secure access rights, and enforced data governance policies. Key Achievements/Contributions:

● Earned formal recognition from Regional Manager for establishing new benchmarks in problem-solving and service quality.

● Served as acting Department Supervisor and Project Manager for multiple system upgrade and deployment initiatives.

● Reduced ticket backlog from over 140 to zero by introducing efficient troubleshooting and resolution protocols. Page 2 of 2

● Directed four clinic activations as designated IT SME while overseeing selection and installation of all hardware, wireless systems, and emergency power setups.

● Strengthened operational continuity by creating and implementing remote access protocols and telework standards.

● Facilitated migration of more than 200 users from Windows 7 to Windows 10, ensuring compliance with security standards. United States Air Force, Edwards AFB, CA / Luke AFB, AZ 2013 – 2019 F-35 Integrated Avionics Senior Manager (2016 – 2019) Directed mission-critical avionics operations for the F-35 program, overseeing staff management, cybersecurity posture, incident resolution, and classified systems oversight. Managed strategic planning and communications infrastructure in line with Department of Defense protocols. Steered updates and integration of new technologies, monitored system trends. Led efforts in COMSEC and operational readiness, supporting classified aircraft functionality under high-stakes conditions. Key Achievements/Contributions:

● Steered maintenance for 23 F-35 aircraft valued at $2.4B by leading a team of 52 technicians to ensure peak mission readiness.

● Established a full-spectrum aircraft maintenance unit and implemented comprehensive security protocols.

● Consolidated eight training tools into a single platform, adopted as Air Force best practice. Quality Assurance Chief Inspector (2013 – 2016)

Conducted high-level quality inspections and diagnostics for advanced aircraft systems to ensure compliance with USAF and DOD standards. Led root cause analysis for mission-critical failures, analyzed trends, and applied corrective actions to prevent recurrence. Directed COMSEC protocols and security incident investigations across sensitive communications platforms. Oversaw software load procedures, encryption systems, and overall technical compliance of avionics units. Key Achievements/Contributions:

● Implemented the USAF's first standardized project management model by developing multiple quality assurance programs.

● Saved $25K monthly by resolving critical engine defects and overhauling mission-essential operational procedures.

● Strengthened analytical capacity by deploying advanced data management systems for quality monitoring and reporting accuracy. Education

BA in Business Information Systems, University of Arizona Global Campus AAS in Avionics Systems Technology, Community College of the Air Force Licenses & Certifications

CompTIA: Security + CompTIA: Network + DoD: Active Top Secret\SCI Clearance, Permit Radioactive Safety Officer FCC: Ground Radio Operators License w/RADAR Endorsement American Heart Association: CPR Instructor Training

IT: eDiscovery Workshop, Splunk User, Google Cloud, Microsoft SharePoint Levels 1-3, Advanced Automated Administration with Windows PowerShell, AI and GenAI in Cybersecurity

DoD: Derivative Classification, Information Security & Awareness, Protecting Sensitive Information, Effective Communication, Critical Thinking, Procurement Integrity, Working with Contractors HealthCare: Injury & Illness Prevention Program for Supervisors & Managers, Introduction to Incident Command System (FEMA), Telemedicine Technician, Durable Medical Equipment Technical Skills

MS Office, Project, Visio, Azure Active Directory SSO, Active Directory, VMWare, Service Now, Configuration Manager/Database, Info Blox, Medication Administration, Olympus, PowerChart, Cerner Skybox, AirWatch, Dragon Suite, Nuance, Verizon Business Portal, MS InTune, Imprivata, SQL Server, Citrix, Power BI, MS Polls, MS Planner, SAP GUI, Netskope, Solar Winds, Dameware, MiPACS, MS Authenticator, Google Authenticator, LAN/WAN, Wireless, DNS, DHCP, WINS, DFS, Public Key Infrastructure (PKI), MS PowerShell for Windows, MS Identity technologies, Windows File Services, Windows Group Policies, Windows Server, Exchange Server AdminCenter, Exchange-O365 AdminCenter (cloud), Multi-Factor Authentication, Pre-Boot Execution Environment, SCCM/MECM Honors & Awards

Air Force Meritorious Service Medal, Air Force Commendation Medal, Air Force Achievement Medal (3x), National Defense Service Medal, Global War on Terrorism Expeditionary Medal, Global War on Terrorism Service Medal, Korean Defense Service Medal, Nuclear Deterrence Operations Service Medal (3x)



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